7) What percentage of ppm of dissolved oxygen indicates good water quality? a) 6.7
b) 8
c) 4.5
d) Below 4.5

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

Match the description of each organism to the appropriate category

Why are current extinctions of concern to enviromentalists?